The traditional invisible car clothing material on the PVC market is what we often call plastic. For example, the hard water pipe is made of PVC. After being processed into the invisible car clothing material, the structure is still hard, and the beauty and adhesive layer are a problem. It may cause trouble to the car for a long time, and the car paint will be damaged if the quality is too poor. The service life ranges from a few months to one or two years.
TPH adds plasticizer to the traditional material and has good flexibility after improvement. However, due to the material, it is still brittle and weak in protection. At the same time, the cost of TPH material is low, and the selected adhesive layer is easy to fall off, which will produce offset printing or glue residue on the paint surface, with a service life of about two or three years.
TPU is a thermoplastic polyurethane with excellent wear resistance, ozone resistance, high strength, good elasticity, good low temperature resistance, oil resistance, chemical resistance and other properties, which is green and environmental protection; In addition, the cold resistance of TPU is also very outstanding (no pressure at minus 40 degrees), with strong toughness and certain hardness. It is a good material for invisible car clothes, with a service life of 5-10 years. Disadvantages: complex production process, low cost rate and high manufacturing cost.
How to distinguish invisible car clothes of different materials? Here are some simple methods to distinguish car clothes materials:
1. Adhesive layer test
Hold the film with your fingers, the adhesive layer is exposed on the outside, and click repeatedly on the paint surface to check whether the adhesion decreases and whether the adhesive layer will fall off. Good TPU materials are generally equipped with a good adhesive layer, which can be operated for more than 50 times without affecting the performance of the adhesive layer.
2. Tensile test
TPU material is obviously made of tenacious silk, which has good toughness and can be restored. The tensile resistance of PVC is very poor.
PVC and TPH have poor thermal stability, and there will be obvious discoloration and peculiar smell when burned. TPU material can maintain good performance. If burned briefly, it will not ignite, change color, or even restore.
4. Key stroke
PVC is very hard and will not be repaired automatically. TPH is thin and TPU has strong toughness. You will feel it if you draw it yourself. At the same time, TPU can self heal scratches and restore after heating for seconds.
TPU invisible car clothing has outstanding advantages and stable automatic repair ability. In addition to providing strong corrosion resistance, the dense nano coating on the surface can also have better repair ability. It will not inhale dust during reduction (some materials in the market absorb dust seriously, resulting in dry and dull film), which can keep the film intact and bright and clean for a long time. Good non staining performance, far away from foreign corrosion, no yellowing and cracking for a long time, with a warranty period of 5-10 years, and the after-sales service is relatively more complete.